EP 0024667 B1 19830504 - PROCESS FOR THE MANUFACTURE OF FLUID DYESTUFF PREPARATIONS, AND THEIR USE
Title (en)
PROCESS FOR THE MANUFACTURE OF FLUID DYESTUFF PREPARATIONS, AND THEIR USE
Publication
Application
Priority
DE 2934949 A 19790829
Abstract (en)
[origin: ES8104367A1] Highly concentrated liquid preparations of disperse dyestuffs are obtained with a low consumption of energy by first adding a dispersing agent to the water-moist dyestuff press-cake to convert it into a form in which it is capable of flow, subjecting this product to wet grinding and increasing the dyestuff content of the resulting, insufficiently concentrated dispersion in a second step by means of a membrane separation process, for example pressure permeation.
IPC 1-7
IPC 8 full level
C09B 67/40 (2006.01); C09B 67/46 (2006.01); C09B 67/54 (2006.01)
CPC (source: EP US)
C09B 67/0082 (2013.01 - EP US); C09B 67/0091 (2013.01 - EP US); C09B 67/0096 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0024667 A2 19810311; EP 0024667 A3 19810318; EP 0024667 B1 19830504; BR 8005468 A 19810310; DE 2934949 A1 19810319; DE 3062967 D1 19830609; ES 494573 A0 19810401; ES 8104367 A1 19810401; JP S5634762 A 19810407; US 4329145 A 19820511
DOCDB simple family (application)
EP 80104892 A 19800816; BR 8005468 A 19800828; DE 2934949 A 19790829; DE 3062967 T 19800816; ES 494573 A 19800828; JP 11653080 A 19800826; US 17638880 A 19800808